I bought a Hoya R72 filter.
When nice blue sky you get it pretty dark.

I found best results are achieved when mix of items that reflect infrared (trees, grass, ...) with items that do not reflect IR like a road or a building.

Need to find time to go into the darkroom and see what the printed results are like.

I think I see a better filter in my future. Comparing to this shot that I shared a while back in one of the film threads, I can see more contrast in yours. I like the way the undersides of the leaves look.

A misplaced scan from this past winter. I can't wait for winter! I think I just like the light better. I like the clouds in the summer, but winter light is my favorite. Low angle, more red, less haze I don't know.

Which version is your 105f2.4/
1969: SUPER-TAKUMAR/6x7 1:2.4/105,
1971: Super-Multi-Coated TAKUMAR/6x7 1:2.4/105
or
1989: smc PENTAX 67 1:2.4 105mm?
I'm into the buying proces for a 105mm or a 90m(LS?) and gathering reviews from "real" users. I'm not a pixel peeper so a lot of info could be gathered from this very nice forum.
Thanks!

The 105 Super Takumar used Thorium glass but all the newer versions did not. There were only 2 optically different versions of the lens (Super Takumar and the rest). Both versions were very sharp and could make 24 X 30 inch prints with ease.